CN1302704A - Granular insulating agent for covering cover ladle - Google Patents
Granular insulating agent for covering cover ladle Download PDFInfo
- Publication number
- CN1302704A CN1302704A CN 99121979 CN99121979A CN1302704A CN 1302704 A CN1302704 A CN 1302704A CN 99121979 CN99121979 CN 99121979 CN 99121979 A CN99121979 A CN 99121979A CN 1302704 A CN1302704 A CN 1302704A
- Authority
- CN
- China
- Prior art keywords
- covering cover
- parts
- agent
- insulating agent
- granular insulating
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Ceramic Products (AREA)
Abstract
A granular insulating agent for covering over ladle is prepared through proportionally mixing charred rice husk, sintered lime and dolomite, graphite, and adhesive, adding light volcanic cinder or haydites, shaping and drying. Its advantages include low consumption, excellent spreading nature and insulating effect and no dust pollution.
Description
The present invention relates to a kind of heat preserving agent, relate in particular to the heat preserving agent that covers ladle in a kind of steelmaking process.
At present, existing insulating agent for covering cover ladle is a powdery, can produce dust pollution in the use.In addition, because its material composition collocation is unreasonable, cause its heat insulation effect undesirable.
The objective of the invention is to overcome above-mentioned deficiency and a kind of high insulating effect is provided, temperature retention time is long, and the insulating agent for covering cover ladle of no dust pollution.
Granular insulating agent for covering cover ladle of the present invention, be a kind of 10-50 part carbonization rice husk, 10-50 part sintering lime, 5-30 part burnt dolomite, 5-50 part graphite and 3-15 part binding agent that will be by weight to mix the mixture that obtains be after the light body scoria of 0.4-0.7 or light body haydite that proportion is 0.4-0.7 are processed into the particle that diameter is 3-12mm with proportion, the heat preserving agent of drying.
Granular insulating agent for covering cover ladle of the present invention, wherein carbonization rice husk is that 15-35 part, sintering lime are that 20-40 part, burnt dolomite are that 8-25 part, graphite are that 8-30 part, binding agent are that 4-8 part and light body scoria or light body haydite are 20-40 part.
Granular insulating agent for covering cover ladle of the present invention, wherein carbonization rice husk is that 20 parts, sintering lime are that 30 parts, burnt dolomite are that 10 parts, graphite are that 10 parts, binding agent are that 5 parts and light body scoria or light body haydite are 25 parts.
Granular insulating agent for covering cover ladle of the present invention, it further improves and is: also comprise 5-20 part flyash in described mixture, flyash wherein can be chosen in 8-10 part scope, and its preferred value is 10 parts.
Granular insulating agent for covering cover ladle of the present invention, wherein said sintering lime is albarium; Described binding agent is cellulose binder or dextrin.
Use more a spot of granular insulating agent for covering cover ladle of the present invention just can obtain following beneficial effect:
(1) it is made of for the particle that the 0.5-0.7 diameter equals 3-12mm proportion fully, has therefore alleviated the slag splash phenomena, and no dust pollution, has improved operating environment greatly;
(2) because reasonable its fusing point of its component collocation can reach 1380 ℃, high insulating effect can make the upper strata liquid steel temperature in the ladle reach 1300-1480 ℃, and the insulation longer duration, can reach 60-100 minute;
(3) test show, use covering and heat insulating agent of the present invention, molten steel more than 30 minutes the cast after, the phenomenon that can not crust, the ladle mouth is not stained with slag;
(4) after dropping into covering and heat insulating agent of the present invention in the tundish, can cover whole centre in the short time at the utmost point, molten steel face spreadability is good in the bag, has guaranteed that substantially the molten steel face does not reveal red in the casting process, make pouring temperature between 1520-1540 ℃, help the stable of casting speed.
Therefore, the superiority of heat preserving agent of the present invention is: consumption is few, spreading property is good, high insulating effect, no dust pollution, improved operating environment greatly, helps the healthy of operator.
Describe a most preferred embodiment of granular insulating agent for covering cover ladle of the present invention below in detail.
Granular insulating agent for covering cover ladle of the present invention is formulated as follows:
(1) mixes, earlier by weight 20 parts of carbonization rice husks, 30 parts of albariums, 10 parts of burnt dolomites, 10 parts of graphite and 5 parts of cellulose binder are put into mixer and stir into the mixture that mixes;
(2) moulding is that 0.6 light body haydite is put into make-up machine with said mixture again with proportion, is rotated into the particle that diameter is 1-12mm with 25-45 rev/min speed.
(3) drying, it is 800mm that above-mentioned moulding product are put into diameter, and length is the dry metal bucket inner drying of 6m, and baking temperature is 60-280 ℃, obtains the granular insulating agent for covering cover ladle of diameter between 1-12mm.
When heat preserving agent of the present invention was used for ladle, steel addition per ton can be 0.5 kilogram; When being used for tundish, when the tundish liquid level rises to 400 millimeter, once can drop into 20 kilograms, later per two stoves drop into 10 kilograms, add in right amount when temperature is on the low side.
Claims (7)
1, a kind of granular insulating agent for covering cover ladle, it is characterized in that: it be a kind of 10-50 part carbonization rice husk, 10-50 part sintering lime, 5-30 part burnt dolomite, 5-50 part graphite and 3-15 part binding agent that will be by weight to mix the mixture that obtains be after the light body scoria of 0.4-0.7 or light body haydite that proportion is 0.4-0.7 are processed into the particle that diameter is 3-12mm with proportion, the heat preserving agent of drying.
2, granular insulating agent for covering cover ladle according to claim 1 is characterized in that: wherein carbonization rice husk is that 15-35 part, sintering lime are that 20-40 part, burnt dolomite are that 8-25 part, graphite are that 8-30 part, binding agent are that 4-8 part and light body scoria or light body haydite are 20-40 part.
3, granular insulating agent for covering cover ladle according to claim 2 is characterized in that: wherein carbonization rice husk is that 20 parts, sintering lime are that 30 parts, burnt dolomite are that 10 parts, graphite are that 10 parts, binding agent are that 5 parts and light body scoria or light body haydite are 25 parts.
4, granular insulating agent for covering cover ladle according to claim 1 is characterized in that: also comprise 5-20 part flyash in the described mixture.
5, granular insulating agent for covering cover ladle according to claim 2 is characterized in that: wherein also comprise 8-15 part flyash.
6, granular insulating agent for covering cover ladle according to claim 3 is characterized in that: wherein also comprise 10 parts of flyash.
7, according to any one described granular insulating agent for covering cover ladle in the claim 1 to 6, it is characterized in that: described sintering lime is albarium; Described binding agent is cellulose binder or dextrin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99121979 CN1302704A (en) | 1999-10-22 | 1999-10-22 | Granular insulating agent for covering cover ladle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99121979 CN1302704A (en) | 1999-10-22 | 1999-10-22 | Granular insulating agent for covering cover ladle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1302704A true CN1302704A (en) | 2001-07-11 |
Family
ID=5282232
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99121979 Pending CN1302704A (en) | 1999-10-22 | 1999-10-22 | Granular insulating agent for covering cover ladle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1302704A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1327994C (en) * | 2005-03-22 | 2007-07-25 | 浙江湖州红鹰企业集团有限公司 | Heat preservation agent in use for molded casting, and producing technique |
| CN100421836C (en) * | 2005-12-27 | 2008-10-01 | 宝山钢铁股份有限公司 | Granular carbonization rice husk covering agent |
| CN102296145A (en) * | 2011-10-08 | 2011-12-28 | 彭州市华泰冶金材料厂 | New application of fungus residue and heat-insulating covering agent for metallurgical industry |
| CN103231034A (en) * | 2013-04-09 | 2013-08-07 | 宣全 | Rice hull ash composite covering agent |
| CN103276145A (en) * | 2013-05-22 | 2013-09-04 | 武汉钢铁(集团)公司 | Cold pressing pellet for insulating molten iron |
| CN103361034A (en) * | 2013-07-17 | 2013-10-23 | 河北联合大学 | Irregular-particle-shaped Chinese chestnut involucre heat-preserving material |
| CN104017937A (en) * | 2013-03-02 | 2014-09-03 | 太原钢铁(集团)有限公司 | Micro carbon alkaline particle covering agent and production method thereof |
| CN107552746A (en) * | 2017-08-31 | 2018-01-09 | 赣州鼎洋贸易有限公司 | A kind of heat preserving agent for liquid steel and its insulation oxidant layer |
-
1999
- 1999-10-22 CN CN 99121979 patent/CN1302704A/en active Pending
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1327994C (en) * | 2005-03-22 | 2007-07-25 | 浙江湖州红鹰企业集团有限公司 | Heat preservation agent in use for molded casting, and producing technique |
| CN100421836C (en) * | 2005-12-27 | 2008-10-01 | 宝山钢铁股份有限公司 | Granular carbonization rice husk covering agent |
| CN102296145A (en) * | 2011-10-08 | 2011-12-28 | 彭州市华泰冶金材料厂 | New application of fungus residue and heat-insulating covering agent for metallurgical industry |
| CN102296145B (en) * | 2011-10-08 | 2013-03-20 | 彭州市华泰冶金材料厂 | New application of fungus residue and heat-insulating covering agent for metallurgical industry |
| CN104017937A (en) * | 2013-03-02 | 2014-09-03 | 太原钢铁(集团)有限公司 | Micro carbon alkaline particle covering agent and production method thereof |
| CN104017937B (en) * | 2013-03-02 | 2015-10-28 | 太原钢铁(集团)有限公司 | A kind of micro-carbon alkali grain insulating covering agent and production method thereof |
| CN103231034A (en) * | 2013-04-09 | 2013-08-07 | 宣全 | Rice hull ash composite covering agent |
| CN103276145A (en) * | 2013-05-22 | 2013-09-04 | 武汉钢铁(集团)公司 | Cold pressing pellet for insulating molten iron |
| CN103361034A (en) * | 2013-07-17 | 2013-10-23 | 河北联合大学 | Irregular-particle-shaped Chinese chestnut involucre heat-preserving material |
| CN103361034B (en) * | 2013-07-17 | 2014-07-09 | 河北联合大学 | Irregular-particle-shaped Chinese chestnut involucre heat-preserving material |
| CN107552746A (en) * | 2017-08-31 | 2018-01-09 | 赣州鼎洋贸易有限公司 | A kind of heat preserving agent for liquid steel and its insulation oxidant layer |
| CN107552746B (en) * | 2017-08-31 | 2020-04-07 | 赣州鼎洋贸易有限公司 | Molten steel heat-insulating agent and heat-insulating agent layer thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101343680A (en) | Metallurgy type refining slag special for ladle and manufacture method thereof | |
| CN1302704A (en) | Granular insulating agent for covering cover ladle | |
| CN100371105C (en) | Molten steel covering agent and its preparation method | |
| US3347721A (en) | Dry exothermic composition containing fibrous material having oxidizer salt absorbedtherein | |
| CN102296145B (en) | New application of fungus residue and heat-insulating covering agent for metallurgical industry | |
| US4119468A (en) | Particulate metallurgical hot topping compositions and method of use | |
| JPS63196689A (en) | Method of molding powdery coke | |
| CN1354053A (en) | Granular heat-insulating agent and its production process | |
| CA1233644A (en) | Method of producing ferro alloys | |
| CN1093564C (en) | Technology for producing rare earth barium silicide alloy by carbon thermal reduction method | |
| CN1209214C (en) | Draining sand for steelworks | |
| CN110385406A (en) | A kind of casting Composite slag remover | |
| JPH0233465B2 (en) | ||
| CN110093478A (en) | A kind of production method of liquid steel refining slag making desulfurization refining slag | |
| CN1035017C (en) | Slag fomation agent for adding magnesium in magnesium balls for smelting steel | |
| CN86100805A (en) | The heat preservation agent on surface, deposite metal | |
| JPS5651539A (en) | Slag making lump material for metal refining | |
| US3953219A (en) | Powdery composition for heat retention of feeder head | |
| CN115287408B (en) | High manganese steel ladle top slag modifier and preparation method thereof | |
| JPH0226874A (en) | Baking repair material | |
| RU2081179C1 (en) | Inoculation mixture | |
| CN107262682B (en) | The method for preparing iron and steel smelting collection slag agent and coverture using three stone tailings | |
| SU1585366A1 (en) | Charge for melting low- and medium-carbon ferromanganese | |
| SU1401065A1 (en) | Composition of pellet charge for producing silicomanganese | |
| SU834188A1 (en) | Modifying composition |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |